Code 43 fuel Supply resolved
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Honda-Tech Member
Joined: Apr 2003
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From: Mason, OH, USA
Code 43 fuel Supply resolved
I noticed I have been getting a cel 43 on my P28 ECU. After replacing my fuel filter and Fuel pump per Helms Manual. Still had the same code.
This code is very broad and can be numerous things. I found after testing my O2 when the eng was cold once warm it took awhile to switch to closed-loop operation. I found out that if you get improper O2 readings you're ecu's short term and long term fuel term will go to 20% which will throw throw the code. New O2 problem solved!
Just some info for those who have has this problem.
This code is very broad and can be numerous things. I found after testing my O2 when the eng was cold once warm it took awhile to switch to closed-loop operation. I found out that if you get improper O2 readings you're ecu's short term and long term fuel term will go to 20% which will throw throw the code. New O2 problem solved!
Just some info for those who have has this problem.
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importimage
Honda Civic / Del Sol (1992 - 2000)
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Jun 30, 2003 04:27 PM